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Bioabsorbable magnesium knots for securing surgical suture

a bioabsorbable, magnesium-based technology, applied in the field of crimpable metal sleeves, can solve the problems of insufficient strength or durability of bioabsorbable polymeric materials to be reliable, low profile, easy to deploy, etc., and achieve the effect of low profile and easy deploymen

Active Publication Date: 2013-03-19
LSI SOLUTIONS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The magnesium alloy knots effectively hold sutures together for an adequate healing duration without remaining as permanent foreign materials, demonstrating strength comparable to hand-tied knots and biodegrading naturally, facilitating successful wound closure in porcine models.

Problems solved by technology

Bioabsorbable polymeric materials have not proved strong or durable enough for reliable, low profile, easy deployment for this application.

Method used

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  • Bioabsorbable magnesium knots for securing surgical suture
  • Bioabsorbable magnesium knots for securing surgical suture
  • Bioabsorbable magnesium knots for securing surgical suture

Examples

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Embodiment Construction

[0039]Referring to FIG. 1A, the Magnesium Knot 10 in accordance with an aspect of the present invention is shown in perspective view held within the distal tip of it delivery device 24, which also provides a suture exit hole 26. The relationship between a suture loop 12 and the Magnesium Knot 10 is illustrated to show the suture loop coursing and looping through both an apposing edge 14 of the left side of tissue wound segment 16 and a corresponding apposing edge 18 of the right side of tissue wound segment 20. Note that by advancing the Magnesium Knot 10 toward tissue segments 16 and 20 and by pulling the suture tails 22, the wound edges 14 and 18 can be drawn together into intimate apposition to optimize healing. Also note that a tubular cannula 28 is shown to illustrate a device through which the Magnesium Knot delivery device 24 and suture tails 22 can pass into the patient.

[0040]FIG. 1B shows a close-up of the Magnesium Knot 10 and suture 12, 22 of FIG. 1A now with the tip of i...

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Abstract

A crimpable magnesium sleeve for securing a suture within the body and for dissolving over time while introducing only compatible amounts of magnesium into the body. An instrument for placing such a sleeve on a suture crimping the sleeve and cutting the suture after placement. An alloy of magnesium, zinc, and aluminum may be used to form the sleeve.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]None.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]None.NAMES OF THE PARTIES TO A JOINT RESEARCH AGREEMENT[0003]None.REFERENCE TO A “SEQUENCE LISTING”[0004]None.BACKGROUND OF THE INVENTION[0005]1. Field of the Invention[0006]This invention relates generally to crimpable metal sleeves used to remotely secure sutures, and more particularly to such sleeves made from magnesium and its alloys.[0007]2. Description of Related Art[0008]A surgeon's ability to hand tie a secure knot in a suture is severely compromised in many minimally invasive surgical procedures. When absorbable sutures are preferred at remote tissue sites, it would be a significant advance to be able to readily create a strong, safe, low profile absorbable knot.[0009]Less invasive therapeutic interventions are most beneficial when the desired physiological or surgical outcome can be achieved with the least amount of iatrogenic trauma to the patient. For ex...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): A61B17/04
CPCA61B17/0401A61B17/0467A61B2017/00004A61B2017/00946A61B2017/0496A61B2017/0414A61B2017/042A61B2017/0454A61B2017/0458A61B2017/0409A61B17/0487A61B2017/0488
Inventor SAUER, JUDE S.LEIGH, HEATHER R.
Owner LSI SOLUTIONS
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